243153400 has 192 divisors, whose sum is σ = 687009600. Its totient is φ = 78274560.

The previous prime is 243153377. The next prime is 243153413. The reversal of 243153400 is 4351342.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2151744 + ... + 2151856.

It is an arithmetic number, because the mean of its divisors is an integer number (3578175).

Almost surely, 2^243153400 is an apocalyptic number.

243153400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243153400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343504800).

243153400 is an abundant number, since it is smaller than the sum of its proper divisors (443856200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243153400 is a wasteful number, since it uses less digits than its factorization.

243153400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 243153400 is about 15593.3767991414. The cubic root of 243153400 is about 624.1564299355.

The spelling of 243153400 in words is "two hundred forty-three million, one hundred fifty-three thousand, four hundred".